/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 苏李涛
 * Date: 2024-10-18
 * Time: 0:55
 */
import java.util.*;

public class Demo2 {
    public static void main(String[] args) {
        Object locker = new Object();

        Thread t1 = new Thread(() -> {
            try {
                System.out.println("t1 wait 之前");
                synchronized (locker) {
                    locker.wait();
                }
                System.out.println("t1 wait 之后");
            } catch (InterruptedException e) {
                throw new RuntimeException();
            }
        });

        Thread t2 = new Thread(() -> {
            try {
                System.out.println("t2 wait 之前");
                synchronized (locker) {
                    locker.wait();
                }
                System.out.println("t2 wait 之后");
            } catch (InterruptedException e) {
                throw new RuntimeException();
            }
        });

        Thread t3 = new Thread(() -> {
            Scanner scanner = new Scanner(System.in);
            System.out.println("输入任意内容, 唤醒所有线程");
            scanner.next();
            synchronized (locker) {
//                locker.notify();
                locker.notifyAll();
            }

        });

        t1.start();
        t2.start();
        t3.start();
    }
}
